Fu Shan - 18 Mar 2026 Form 3 Insider Report for SINOVAC BIOTECH LTD (SVA)

Role: Director
Signature: /s/ Jia Zhao, Attorney-in-Fact
Issuer symbol: SVA
Transactions as of: 18 Mar 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Mar 2026, 08:11:43 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
FU SHAN	Director	SEE REMARKS, BEIJING, CHINA	/s/ Jia Zhao, Attorney-in-Fact	18 Mar 2026	0002114111

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	SVA	Common shares, par value $0.001 per share						5,903,000	18 Mar 2026	By Vivo Capital Fund VIII, L.P., Vivo Capital Surplus Fund VIII, L.P. and Vivo Capital Fund IX, L.P.	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person is a managing member of Vivo Capital VIII, LLC, which is the general partner of Vivo Capital Fund VIII, L.P. and Vivo Capital Surplus Fund VIII, L.P. The Reporting Person may be deemed to share voting and dispositive power over 1,196,073 common shares, par value $0.001 per share, of the Issuer (the "Common Shares") held by Vivo Capital Fund VIII, L.P. and 165,163 Common Shares held by Vivo Capital Surplus Fund VIII, L.P. with three other voting members. The Reporting Person, as the managing member of Vivo Capital IX, LLC, which is the general partner of Vivo Capital Fund IX, L.P., may be deemed to share voting and dispositive power over 4,541,764 Common Shares held by Vivo Capital Fund IX, L.P. with five other voting members.
F2	The Reporting Person disclaims beneficial ownership over such shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purposes.

Content

The Reporting Person is a managing member of Vivo Capital VIII, LLC, which is the general partner of Vivo Capital Fund VIII, L.P. and Vivo Capital Surplus Fund VIII, L.P. The Reporting Person may be deemed to share voting and dispositive power over 1,196,073 common shares, par value $0.001 per share, of the Issuer (the "Common Shares") held by Vivo Capital Fund VIII, L.P. and 165,163 Common Shares held by Vivo Capital Surplus Fund VIII, L.P. with three other voting members. The Reporting Person, as the managing member of Vivo Capital IX, LLC, which is the general partner of Vivo Capital Fund IX, L.P., may be deemed to share voting and dispositive power over 4,541,764 Common Shares held by Vivo Capital Fund IX, L.P. with five other voting members.

The Reporting Person disclaims beneficial ownership over such shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purposes.

Remarks:

The full street address is Unit 1501-1505, North Tower, CP Center, 20 Jinhe East Road, Chaoyang District. Exhibit 24 - Power of Attorney